Kawaguchi only has four seconds to take his photos and has to have paramedics standing by in case something goes wrong, but that hasn't stopped him from being totally inundated with requests from couples old and young who want him to take their picture.

Well you know what they say: The couple who vacuum-packs together stays together.

No-one - apparently - has been hurt during Kawaguchi's process; while the couples have to hold their breath for about 10 seconds, the photographer has an assistant close by to open the bag at a moment's notice, and keeps oxygen spray and gel in stock at all times.

Kawaguchi's project has taken off so much that he's now receiving commissions from newlyweds - who want him to shoot their wedding photos.